Originally Posted by
swampfire79
Thanks for all the info guys. I didn't know it had auto hub for one thing. I parked in a Field while hunting and it started raining while i was in the woods. Tried moving and started spinning. So i turned my switch to 4x4 and thought i locked the hubs. Turns out one was locked and the other was in auto. I guess that's why the front didn't pull. I used the 4x4 today in auto and its working fine. Thanks again
The tires and axles have to be spinning for them to engage, in other words once your stuck your stuck. I have witnessed on 2 separate occasions a 7.3 and a 6.0 get stuck in sugar sand next to my house they engaged the ESOF and tried manually locking hubs after it was stuck and it would not engage. This is why i engage mine before I pull my TT Anywhere near offroad. Unless these trucks were both broken by coincidence